Norton 66260273599 Surface Grinding Wheel 220 Grit Diamond

Product Description

The NORTON 66260273599 is a Type 1A1 diamond surface grinding wheel engineered for precision finishing operations on hard and brittle materials. Measuring 6 inches in diameter and 1/16 inches thick with a 1-1/4 inches arbor hole, this wheel uses synthetic diamond (SD) abrasive bonded in a resinoid matrix. At 220 grit with a Very Fine grade and a soft hardness rating (R), it is suited for controlled stock removal and surface finishing passes where tight tolerances and smooth finishes are required. The resinoid bond supports both wet and dry operation, giving technicians flexibility at the machine.

This wheel is designed for surface grinding applications that demand a very fine finish. It is well-suited for toolroom and production grinding of carbide, ceramics, glass, and other hard materials where conventional abrasive wheels are ineffective. The 1/4 inches superabrasive depth provides adequate working material for finishing cycles. Machinists, toolroom operators, and precision grinding technicians working on surface grinders will find this wheel appropriate for final-stage material finishing rather than aggressive stock removal.

Key Features

• Type 1A1 straight wheel profile — flat face geometry for surface grinding applications
• Synthetic diamond (SD) abrasive at 100 concentration for consistent cutting action
• 220 grit Very Fine grade produces smooth surface finishes on hard materials
• Resinoid bond supports both wet and dry grinding operation
• Soft hardness rating (R) helps maintain sharp cutting edges on dense workpiece materials
• No recess, no taper — straightforward mounting on standard surface grinder spindles

Compatibility

Designed as an OEM-style replacement or direct-fit surface grinding wheel for surface grinders accepting a 6 inches diameter, 1-1/4 inches arbor hole, Type 1A1 straight wheel. Specification code SD220-R100B99-1/4 identifies the exact abrasive and bond composition for cross-reference purposes.

Installation Notes

Installation should be performed by a qualified machinist or grinding technician following the grinder manufacturer's wheel-mounting procedures and ANSI B11.22 or applicable safety standards. Always power down and lock out the surface grinder before mounting or removing a wheel. Inspect the wheel for cracks or chips before mounting, use the correct flanges and blotters as specified by the machine manufacturer, and never exceed the maximum operating speed marked on the wheel or its packaging.